var arrowimages={
    right:['rightarrowclass', 'right.gif']
    }

var jqueryslidemenu={

    animateduration: {
        over: 1, 
        out: 1
    }, //duration of slide in/ out animation, in milliseconds

    buildmenu:function(menuid, arrowsvar){
        jQuery(document).ready(function($){
            var $mainmenu=$("#"+menuid+">ul")
            var $headers=$mainmenu.find("ul").parent()
            $headers.each(function(i){
                var $curobj=$(this);
                var $subul=$(this).find('ul:eq(0)');
                this._dimensions={
                    w:this.offsetWidth, 
                    h:this.offsetHeight, 
                    subulw:$subul.outerWidth(), 
                    subulh:$subul.outerHeight()
                    };
                this.istopheader=$curobj.parents("ul").length==1? true : false;
                $subul.css({
                    top:this.istopheader? this._dimensions.h+"px" : 0
                    });
                    if(!this.istopheader)
                    {
                        $curobj.children("a:eq(0)").append('<img src="' + $store.host + '/static/images/'+ arrowsvar.right[1] +'" class="' + arrowsvar.right[0] + '" style="border:0;" />');
                    };
                
                $curobj.hover(
                    function(e){
                        var $targetul=$(this).children("ul:eq(0)");
                        this._offsets={
                            left:$(this).offset().left, 
                            top:$(this).offset().top
                        };
                        var menuleft=this.istopheader? 0 : this._dimensions.w;
                        menuleft=(this._offsets.left+menuleft+this._dimensions.subulw>$(window).width())? (this.istopheader? -this._dimensions.subulw+this._dimensions.w : -this._dimensions.w) : menuleft
                        if ($targetul.queue().length<=1) //if 1 or less queued animations
                            $targetul.css({
                                left:menuleft+"px", 
                                width:this._dimensions.subulw+'px'
                                }).slideDown(jqueryslidemenu.animateduration.over)
                    },
                    function(e){
                        var $targetul=$(this).children("ul:eq(0)")
                        $targetul.slideUp(jqueryslidemenu.animateduration.out)
                    }
                    ) //end hover
                $curobj.click(function(){
                    $(this).children("ul:eq(0)").hide()
                })
            }) //end $headers.each()
            $mainmenu.find("ul").css({
                display:'none', 
                visibility:'visible'
            })
        }) //end document.ready
    }
}

//build menu with ID="myslidemenu" on page:
jqueryslidemenu.buildmenu("menu", arrowimages)